22
Troubleshooting charts
R, G, B Input
OSD is on the screen.
To DTV Decoder module
Check the SELECT SGINAL switch on the rear panel is to R/G/B.
Select the switch to R/G/B.
Check the input/output signal of IC207.
Pins 9, 10, 11 : High
Pin 13 : Y in
Pin 1 : B-Y in
Pin 3 : R-Y in
Check IC207.
Check the input/output signal of IC208.
Pins 9, 10, 11 : High (Base of QC215 : Low)
Pin 14 : Y signal Pin 15 : B-Y signal
Pin 4 : R-Y signal
Check IC208.
Check if pin 52 of IC212 is Low.
VIDEO
Signals R, G, and B are to pins 7, 8, and 9 of IC201.
Signals B-Y, Y and R-Y are to pins 3, 4, and 5 of IC201.
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
Check IC207.
Check IC207.
V2
END
YES
Содержание DSC-30W60N
Страница 60: ...59 10 1 Connection Diagram 10 Circuit Diagram...
Страница 62: ...61 Circuit Diagram 10 3 Power Circuit...
Страница 63: ...62 Circuit Diagram 10 4 Main Circuit...
Страница 64: ...63 Circuit Diagram 10 5 Video1 Circuit...
Страница 65: ...64 Circuit Diagram 10 6 Video2 Circuit...
Страница 66: ...65 10 7 Audio Circuit Circuit Diagram...
Страница 67: ...66 10 8 Com Filter Circuit Circuit Diagram...
Страница 68: ...67 10 9 VM Circuit Circuit Diagram...
Страница 69: ...68 10 10 Blanking Circuit Circuit Diagram...
Страница 70: ...69 10 11 Jack A V CONTROL LED Circuit Circuit Diagram...
Страница 71: ...70 10 12 CRT Circuit Circuit Diagram...
Страница 72: ...71 11 Exploded View DSC 30W60N...
Страница 73: ...72 Circuit Diagram 10 13...